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DonSeTch: Free Web Research Tool for AI Agents
DonSeTchfree web search for AI agentsopen source MCP toolRust web scrapingno API key searchMCP web tools

DonSeTch: Free Web Research Tool for AI Agents

Eng. Bilal Katbi 2026-08-28 4 min read

DonSeTch is a $0, open-source web research tool for AI agents, built from scratch in Rust. No API keys, no accounts, no billing — you get complete fetch, search and crawl in one 36 MB binary.

🟢 Three tools: web_search (merges 10+ keyless engines), web_fetch (clean markdown, bot-wall bypass, PDF/OCR), and web_crawl (full-site extraction).

🟢 Install: requires only Node.js. Run npm install -g donsetch, then start it as an MCP server with donsetch mcp. Source at github.com/dondai44423/donsetch. AGPL-3.0.

🟢 Works everywhere: any agent that speaks MCP — Claude Code, Cursor, OpenCode, Windsurf, Pi, Hermes.

🟢 Real Chrome TLS: uses Chrome's own BoringSSL, so its requests look like a genuine browser and evade anti-bot detection. Bypasses bot walls, then sleeps — the fast HTTP layer does the heavy lifting.

🟢 Token savings: probe mode (must_contain) verifies claims for ~60 tokens instead of reading a full page; page memory and since_last turn re-checks into one-line verdicts.

🟢 Keyless search: 10+ free search backends fused by cross-engine consensus, so no paid API is needed.

🔴 Limits: does not solve interactive CAPTCHAs, does not handle login-required sites, and crawl honours robots.txt. Heavy unchecked keyless search may hit rate limits — set DONSEEK_PROXIES for intensive use.

🟢 UAE angle: an ideal zero-cost research layer for agents that monitor competitors, collect market reports, or automate client research — instead of paid API subscriptions.

📚 AI Agents for UAE Businesses 📚 AI Agent Costs in the UAE 📚 DeepSeek Harness: Open-Source Agent Framework

Katbi Digital Solutions tests open-source AI tools hands-on — we ran DonSeTch ourselves — then builds real solutions on top. Let us build an intelligent research agent for your business.

🤖 Smart Research Agents — monitor competitors and generate reports automatically 📱 Customer Service Bots — WhatsApp and Telegram with your knowledge base 🌐 Market Research Automation — agents collect and organise data daily 📊 AI Consulting — pick the right tool before you pay

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